Legal

API terms

Terms for the Convertr API, the MCP server and prepaid API credits. They add to the general Terms of Service. Last updated: November 8, 2026.

On this page

1. Scope and provider

These API terms apply to the Convertr REST API, the Convertr MCP server and API credits. The provider is Marin Solutions UG (haftungsbeschränkt), Nahariyastr. 34, 12309 Berlin, Germany, VAT ID DE351058030 ("we", "us"). You can reach us at [email protected].

They add to the general Terms of Service, which also apply. If the two conflict for the API, the MCP server or credits, these API terms come first. The converter on the website stays free and is not covered by the credit rules.

You accept these terms when you create an API key or buy credits. They apply to consumers and to businesses. Where a rule is for one group only, the text says so.

2. Accounts and API keys

  • You need an account with a verified email address to use the API and to buy credits.
  • Keep your API keys secret. Do not put them in public code, in browser code or in public repositories.
  • You are responsible for all use of your keys, including use by people or programs you gave a key to.
  • Tell us at once if a key is lost or leaked. You can delete a key on the API keys page.
  • We may revoke a key if it is abused, if it breaks these terms or if it puts the service at risk. We will tell you when this is reasonable and possible.

3. Credits

  • What a credit is: one credit pays for one conversion of an input file up to 100 MB. Each further started 100 MB of input costs one more credit.
  • Free credits: every account with a verified email gets 100 free credits each calendar month (UTC). They reset at the start of the month. Unused free credits do not carry over. They have no cash value.
  • Paid packs: a credit pack is a one-time purchase. It is not a subscription and it does not renew.
  • Validity: paid credits are valid for 12 months from the day of purchase. Unused credits expire after that. We do not refund expired credits.
  • Order of use: we use the free credits first and the paid credits after that.
  • No transfer, no cash value: credits belong to your account. You cannot transfer, sell or pay them out.
  • Failed conversions: if a conversion fails, we refund its credits to your account automatically.
  • Deleting a conversion: if you delete a finished conversion, you do not get its credits back.

The pricing page lists the current packs. Prices and pack sizes can change for future purchases. A change does not affect credits you already bought.

4. Prices and payment

  • Prices are in US dollars (USD). Value added tax (VAT) is added where it applies. Checkout shows the full amount before you pay.
  • You pay through Stripe. We do not see your card data.
  • We send an invoice by email after the payment.
  • Businesses in the EU outside Germany can enter a valid VAT ID at checkout. If the conditions are met, the reverse charge applies and we do not charge VAT. You must then pay the VAT in your country.
  • We add the credits to your account when the payment is complete.

5. Right of withdrawal for consumers

This section applies to consumers in the EU. A consumer is a person who buys for purposes that are mostly outside their trade or profession. Businesses have no right of withdrawal.

Early start and loss of the right

Credits are digital content and a digital service. Before you pay, checkout asks you to agree to these API terms and to ask us to make the credits available at once. When you do, you confirm that you lose your right of withdrawal as soon as we add the credits to your account.

Withdrawal information

If the right of withdrawal still applies, this information is valid for you.

Right of withdrawal. You have the right to withdraw from this contract within 14 days without giving any reason. The withdrawal period is 14 days from the day of the conclusion of the contract.

To exercise the right of withdrawal, you must inform us of your decision to withdraw from this contract by a clear statement. Marin Solutions UG (haftungsbeschränkt), Nahariyastr. 34, 12309 Berlin, Germany, email: [email protected]. You may use the model withdrawal form below, but you do not have to. To meet the withdrawal deadline, it is enough to send your communication before the withdrawal period has expired.

Effects of withdrawal. If you withdraw from this contract, we will reimburse all payments we received from you without undue delay and no later than 14 days from the day we receive your notice of withdrawal. We will use the same means of payment that you used for the original transaction. You will not pay any fee for this reimbursement.

If you asked us to begin the service during the withdrawal period, you must pay us an amount in proportion to what has been provided until you told us about the withdrawal, compared with the full coverage of the contract. Credits you already used for conversions count as provided.

End of the right. The right of withdrawal ends for a contract for digital content that is not on a physical medium when we have started to make it available, after you expressly agreed that we start before the withdrawal period ends and confirmed that you lose your right of withdrawal in this case.

Model withdrawal form

Fill in this form and send it to [email protected] or by post to Marin Solutions UG (haftungsbeschränkt), Nahariyastr. 34, 12309 Berlin, Germany, only if you want to withdraw.

  • I hereby withdraw from the contract I concluded for the purchase of the following API credits: (name of the pack).
  • Ordered on (date).
  • Name of the consumer.
  • Email address of the account.
  • Date.

6. Acceptable use

The acceptable use rules of the general Terms of Service apply to the API too. In addition:

  • Respect the rate limits: 60 conversion starts per minute and 600 other requests per minute for each key. Do not use several keys or accounts to get around them.
  • Do not try to bypass limits, credit checks or security measures.
  • Do not use the url input to reach internal or private networks, or to attack other systems. We block such addresses on purpose. Do not try to get around these protections.
  • Do not send files that are illegal, or that you have no right to convert. Do not send malware.
  • Use the service fairly. We may slow down or stop use that is far out of line with normal use and that burdens other customers.

If you break these rules, we may suspend or close your keys or your account. We try to tell you first. We may act at once if there is a risk for the service, for other customers or for third parties.

7. Files and data

  • We delete uploaded files and converted files 24 hours after the conversion. You can delete them sooner with the API.
  • Download links are valid for 24 hours.
  • We do not read the contents of your files and we do not use them for any other purpose than the conversion.
  • You are responsible for your files and for having the rights to convert them.

We process personal data as described in the Privacy Policy.

8. Availability and changes to the service

We aim to keep the API running, but we do not promise a fixed uptime and we offer no service level agreement (SLA). We may do maintenance, and the service can be down for short times.

We may add, change or remove formats and features, for example when a conversion tool changes.

9. Liability

We are fully liable for intent and gross negligence, for injury to life, body or health, and where the law requires it, for example under the Product Liability Act. This also covers a guarantee we gave.

For a slight breach of an essential obligation, we are liable only for the damage that was foreseeable and typical for this kind of contract. An essential obligation is one that makes the proper use of the contract possible and that you can normally rely on.

We are not liable for a slight breach of other obligations. Our liability for lost data is limited to the effort that would have been needed to restore the data if you had made regular backups. These limits also apply to the liability of our employees and helpers.

Conversion results can differ from the source. Check the result before you use it for important work.

10. Changes, governing law and contact

We may change these terms for good reasons, for example for legal changes or new features. We will tell you by email or on the website before a change takes effect. The change applies if you keep using the API after the date given in the notice. A change never reduces credits you already bought.

German law applies, without its conflict of law rules. For consumers, the mandatory consumer protection rules of the country where they live stay in force. For businesses, the place of jurisdiction is our registered office, as far as the law allows.

Questions about these terms: [email protected]. The page is also available as Markdown.